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Atlassian
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Overview Fund Activity

843 hedge funds and large institutions have $30.8B invested in Atlassian in 2025 Q1 according to their latest regulatory filings, with 157 funds opening new positions, 372 increasing their positions, 231 reducing their positions, and 86 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
843
Holders Change
+54
Holders Change %
+6.84%
% of All Funds
11.45%
Holding in Top 10
21
Holding in Top 10 Change
+4
Holding in Top 10 Change %
+23.53%
% of All Funds
0.29%
New
157
Increased
372
Reduced
231
Closed
86
Calls
$719M
Puts
$627M
Net Calls
+$91.9M
Net Calls Change
+$170M

Top Buyers

1
AQR Capital Management
AQR Capital Management
Connecticut
$355M
2
Arrowstreet Capital
Arrowstreet Capital
Massachusetts
$357M
3
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT)
United Kingdom
$283M
4
BlackRock
BlackRock
New York
$2.36B
5
Massachusetts Financial Services
Massachusetts Financial Services
Massachusetts
$730M

Top Sellers

1
T. Rowe Price Associates
T. Rowe Price Associates
Maryland
$453M
2
DCP
Durable Capital Partners
Maryland
$0
3
Capital International Investors
Capital International Investors
California
$769M
4
WCM Investment Management
WCM Investment Management
California
$745M
5
WRCM
Whale Rock Capital Management
Massachusetts
$0
Name Holding Trade Value Shares
Change 		Shares
Change %
D.E. Shaw & Co
51
D.E. Shaw & Co
New York
$112M -$52.8M -248,992 -32%
Two Sigma Advisers
52
Two Sigma Advisers
New York
$111M +$48.3M +227,800 +77%
HJGA
53
Hardman Johnston Global Advisors
Connecticut
$111M -$1.33M -6,247 -1%
William Blair Investment Management
54
William Blair Investment Management
Illinois
$107M +$107M +505,536 New
ACM
55
Ashe Capital Management
New Jersey
$106M – – –
Swiss National Bank
56
Swiss National Bank
Switzerland
$96.7M +$722K +3,400 +0.8%
SEI Investments
57
SEI Investments
Pennsylvania
$95.4M -$19.9M -93,661 -17%
1832 Asset Management
58
1832 Asset Management
Ontario, Canada
$91.4M +$31M +145,900 +51%
KBC Group
59
KBC Group
Belgium
$89.4M +$36M +169,492 +67%
Lord, Abbett & Co
60
Lord, Abbett & Co
New Jersey
$88.7M +$69M +325,087 +350%
Royal Bank of Canada
61
Royal Bank of Canada
Ontario, Canada
$86.7M -$11.6M -54,465 -12%
Sumitomo Mitsui Trust Group
62
Sumitomo Mitsui Trust Group
Japan
$81.9M +$1.97M +9,297 +2%
PAM
63
Panagora Asset Management
Massachusetts
$81.6M +$81.6M +384,600 New
PCH
64
Polar Capital Holdings
United Kingdom
$81.3M +$76.4M +360,181 +1,575%
CSS
65
Cubist Systematic Strategies
Connecticut
$73.9M +$36.9M +173,651 +100%
Envestnet Asset Management
66
Envestnet Asset Management
Illinois
$68.8M -$4.29M -20,235 -6%
Barclays
67
Barclays
United Kingdom
$66.6M +$14.1M +66,278 +27%
WorldQuant Millennium Advisors
68
WorldQuant Millennium Advisors
New York
$66M +$12.4M +58,236 +23%
Bessemer Group
69
Bessemer Group
New Jersey
$65.3M +$355K +1,674 +0.5%
TC
70
TwinBeech Capital
New York
$64.2M +$40.7M +191,718 +173%
MNA
71
Manning & Napier Advisors
New York
$63.8M +$35.8M +168,593 +128%
Russell Investments Group
72
Russell Investments Group
United Kingdom
$63.8M +$9.8M +45,842 +18%
DDC
73
DF Dent & Co
Maryland
$63.6M -$2.92M -13,757 -4%
Marshall Wace
74
Marshall Wace
United Kingdom
$60.9M +$5.51M +25,985 +10%
California Public Employees Retirement System
75
California Public Employees Retirement System
California
$57.1M +$2.02M +9,522 +4%
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